Question

find the unkonw angles marked in each of the following figure .

Answer 1

Hola

Here is your answer ☺

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In ∆ PQR

2x + 6x + x = 180°

By the Angle sum property of triangle.

9x = 180°

x = 180/9

x = 20°

Thus, the angles are

x = 20°

2(20) =40°

6(20) = 120°

Hope it helps !

Answer 2

x+2x6x=180
9x=180
x=20

then,
x=90
2x=40
6x=120

hope it will help you